1.若一个角的补角的度数等于第二个角的余角的三倍少20°,而第二个角的补角又恰为第一个角的余角的三倍多20°,求这两个角的度数.2.如图,把书的一角斜折过去,是A点落在E点处,BC为折痕,BD是∠
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![1.若一个角的补角的度数等于第二个角的余角的三倍少20°,而第二个角的补角又恰为第一个角的余角的三倍多20°,求这两个角的度数.2.如图,把书的一角斜折过去,是A点落在E点处,BC为折痕,BD是∠](/uploads/image/z/2709588-12-8.jpg?t=1.%E8%8B%A5%E4%B8%80%E4%B8%AA%E8%A7%92%E7%9A%84%E8%A1%A5%E8%A7%92%E7%9A%84%E5%BA%A6%E6%95%B0%E7%AD%89%E4%BA%8E%E7%AC%AC%E4%BA%8C%E4%B8%AA%E8%A7%92%E7%9A%84%E4%BD%99%E8%A7%92%E7%9A%84%E4%B8%89%E5%80%8D%E5%B0%9120%C2%B0%2C%E8%80%8C%E7%AC%AC%E4%BA%8C%E4%B8%AA%E8%A7%92%E7%9A%84%E8%A1%A5%E8%A7%92%E5%8F%88%E6%81%B0%E4%B8%BA%E7%AC%AC%E4%B8%80%E4%B8%AA%E8%A7%92%E7%9A%84%E4%BD%99%E8%A7%92%E7%9A%84%E4%B8%89%E5%80%8D%E5%A4%9A20%C2%B0%2C%E6%B1%82%E8%BF%99%E4%B8%A4%E4%B8%AA%E8%A7%92%E7%9A%84%E5%BA%A6%E6%95%B0.2.%E5%A6%82%E5%9B%BE%2C%E6%8A%8A%E4%B9%A6%E7%9A%84%E4%B8%80%E8%A7%92%E6%96%9C%E6%8A%98%E8%BF%87%E5%8E%BB%2C%E6%98%AFA%E7%82%B9%E8%90%BD%E5%9C%A8E%E7%82%B9%E5%A4%84%2CBC%E4%B8%BA%E6%8A%98%E7%97%95%2CBD%E6%98%AF%E2%88%A0)
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